Accrued Liabilities

6 Months Ended

Jun. 30, 2018

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued Liabilities

Other current liabilities as of June 30, 2018 and December 31, 2017 consist of the following:

	June 30, 2018		December 31, 2017
	(in thousands)
Federal excise and other passenger taxes and fees payable	$	78,393	$	42,036
Salaries and wages	77,363		54,338
Airport obligations	59,981		56,299
Aircraft maintenance	44,065		33,033
Fuel	24,543		25,171
Interest payable	19,620		11,384
Aircraft and facility lease obligations	14,020		16,992
Other	28,422		23,117
Other current liabilities	$	346,407	$	262,370